Adjustable caster



C. W. OSTRANDER.

ADJUSTABLE CASTER.

APPLICATION FILED DEC. 15. 1919.

Patented Mar. 9, 1920.

IN VE/V TOR Charles 1 1. 03921124167."

WI "(E8858 A TTORNEY8 UNITED STATES PATENT ornron CHARLES WILLIAM OSTRANDER, OF WINSTED, CONNECTICUT.-

' ADJUSTABLE- CASTEB.

Specification of Letters Patent. Patented luau. 9, 1920.

Application filed December 15, 1919.. Serial No. 344,892.

. ducing a variation of height of the caster.

Another object in view, more specifically, is the provision of a caster with a bearing member capable of adjustment for raising and lowering the wheel of the caster in order to level up an object on which the raster is placed.

In the accompanying drawing: I

Figure 1 is a longitudinal vertical section through a caster disclosing an em bodiment of the invention.

Fig. 2 is a transverse through Fig. 1 on line 22.

Referring to the accompanying drawing by numerals, 1 indicates a pintle which acts as a journal member. This pintle is designed to be placed into a socket when the caster is in use, said pintle being riveted or otherwise rigidly secured to a U-shaped yoke pending and somewhat resilient sides 3 and t having apertures therein near the bottom. A. shaft 5, preferably in the form of a bolt, is passed through the apertures in the sides" and 4 and through an eccentrically positioned aperture in'bearing member 6. A nut '7, preferably of the winged type, is meuntcd on the bolt 5 so'as to firmly clamp the sides 3 and a against the bearing mem her 6 for preventing any turning thereof under ordinary conditions To assist this rigid clamping action theends of the bearing member 6 are knurled or roughened over. the entire face. The bearing member sectional view 6 is cylindrical, but the aperture through which the bolt 5-passes is arranged eccen-' shaft may be, rotated on the bolt 5 to proj duce a vertical'adjustment of the Wheel 8,

said yoke being formed with de- This is very desirable in some instances when the caster is used on furniture. many dwellings the floor, when settling, becomes uneven and if all the casters were the same height the furniture would tilt as it would rest on three casters instead of four.

To obviate this it is customary to place a small article underone of the casters in or.- der to level up the support for the article,

as for instance a bureau. By providing the eccentrically positioned bearing member 6 any unevenness of the floor may be taken up by loosening the nut 7, turning-the bearing member 6 and then tightening the nut 7. It is also evident that the casters could be used for other purposes as for instance raising or lowering the level of an article.

hat I claim is: a o

l. A caster comprising a casing provided with means for connection with a suitable socket, a wheel, and means for, adjustably mounting said wheel in said casing so as to vary the effective height of the caster.

2. A casterof the character described comprising a casing havinga pair of sides, a wheel arranged between said sides, and an eccentrically mounted bearing member for the wheel connected with said sides.

3. A. caster comprising a casing having a pair of comparatively resilient sides, a

wheel arranged betweensaid sides, an eccentrically mounted bearlng for sald wheel,

and 110621118 for clamping the sides against said hearing so as to prevent rotation of the bearing under normal condition.

pending resilient sides, a wheel arranged between said sides, a'bearing for said wheel 4t. A caster comprising a pair of, comparahaving an eccentric opening therein, said bearinoalso having roughened ends, and a clamping bolt extending through said sides and through said opening for rigidly clamping the sides against said ends so as to lock the bearing in any adjusted position.

CHAS. WILLIAM osTRANDE-R. 

